Help with choosing equipment to control halogen lamp

[Nlis12]

I'm fairly new to electronics but I'd like to control a halogen lamp.
I plan on using an arduino uno for control and programming a PI loop on it.

I need an analog controlled power supply. Something that you would input a 0-5V(mA) signal to linearly control the output to a range of 0-24V (3-6A). Of course this power supply would also be powered from the wall.

Ideally the arduino would be outputting a 0-5V signal to control the power supply.

Any ideas of particular power supplies that may function as described?

Thanks!

 

[Harald Kapp]

Welcome to EP, Nils.

The 'classic' way to control brightness of a lamp is not by varying the voltage in a linear fashion. Rather a technique called PWM is employed. This technique saves energy and is much more suitable to control by a microcontroller.

See this project.

 

[Nlis12]

Welcome to EP, Nils.

The 'classic' way to control brightness of a lamp is not by varying the voltage in a linear fashion. Rather a technique called PWM is employed. This technique saves energy and is much more suitable to control by a microcontroller.

See this project.

Thanks a bunch!!!
I don't know why I didn't think of this sooner as one of my other projects uses PWM to control resistive heaters, which are basically the same thing!